Software that makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day.




Twilight Blue Light Filter is described as 'Optimal night filter that can be created to provide a warm light night screen for your eye care' and is a color temperature tool in the os & utilities category. There are more than 10 alternatives to Twilight Blue Light Filter for a variety of platforms, including Linux, Windows, Mac, Wayland and Android apps. The best Twilight Blue Light Filter alternative is f.lux, which is free. Other great apps like Twilight Blue Light Filter are Redshift, LightBulb, Solace and Red Moon.
Software that makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day.




Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime.

Background application that adjusts screen gamma, making the colors appear warmer at night, reducing strain on your eyes.


Automatically changes Mac appearance using real-time weather, sunlight, and time data for light and dark modes, dynamic wallpapers, and color temperature, with on-device privacy, menu bar access, no subscriptions, and no analytics for seamless daily comfort.




The app is free on F-Droid and on GitHub but you can buy it on the Google Play Store to support the developer.




The app filters the blue spectrum on your phone or tablet after sunset and protects your eyes with a red filter. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.



Enjoy free cross-platform blue light reduction and PWM flicker-free brightness control with Iris mini. Minimalistic design, portable, and automatic for no-hassle, eyestrain-relief across all devices. Simply double-click to activate, perfect for every lighting condition.



World's first instantaneous content-aware brightness control app that let your screen’s brightness and color temperature adapt instantly and automatically to provide the most optimal viewing experience for your eyes.



